FVXX22 KWBC 221600
VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 1600 UTC 22 APR 2000 BY THE WASHINGTON VAAC
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SAN CRISTOBAL 00-066   NICARAGUA  1242N 8700W 
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BACKGROUND:    SAN CRISTOBAL NICARAGUA (1404-02)
               SUMMIT HEIGHT 5725 FT (1745M)
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SOURCES OF INFORMATION:  GOES-8 VISIBLE INFRARED AND
MULTISPECTRAL SATELLITE IMAGERY.  UPPER LEVEL WIND FORECAST
FROM AVIATION MODEL.
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ERUPTION DETAILS: ASH OBSERVED IN SATELLITE IMAGERY.
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DETAILS OF ASH CLOUD: SATELLITE IMAGERY THROUGH 22/1515 UTC
SHOWS ASH EXTENDING FROM THE SUMMIT TOWARD THE SOUTHWEST AND
REACHING THE POINT 1217N 8737W.  THE PLUME IS ABOUT 83 KM (45
NMI) LONG AND 15 KM (8 NMI) WIDE.  ASH IS BELIEVED TO BE BELOW
ABOUT FL100.  
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TRAJECTORY: ASH IS MOVING TO THE SOUTHWEST AT ABOUT 10 KNOTS.

OUTLOOK:  SEE SIGMETS.
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THE NEXT MESSAGE WILL BE ISSUED BY 22/2200 UTC.
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REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER VOLCANIC
ASH ADVISORY STATEMENTS OFTEN ACCOMPANIED BY A MAP DEPICTING
ASH LOCATION ARE AVAILABLE AT INTERNET URL ADDRESS  
http://www.ssd.noaa.gov/VAAC/washington.html
(all lower case except /VAAC/)
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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RUMINSKI/STREETT
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NNNN"Attached Graphic Map Depicting Ash" 

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